Release escudo 0.4.0

[ShikiOkasaka]

Platforms to be checked:

• [x] Fedora 18 (x86_64 526386553d13cc09c1ab03377bf86e0a253e529a, i386 526386553d13cc09c1ab03377bf86e0a253e529a)
• [x] Fedora 19 (x86_64 526386553d13cc09c1ab03377bf86e0a253e529a, i386 526386553d13cc09c1ab03377bf86e0a253e529a)
• [x] Ubuntu 13.04 (x86_64 526386553d13cc09c1ab03377bf86e0a253e529a, i386 526386553d13cc09c1ab03377bf86e0a253e529a)
• [x] Ubuntu 13.10 (x86_64 526386553d13cc09c1ab03377bf86e0a253e529a, i386 526386553d13cc09c1ab03377bf86e0a253e529a)
• [x] Mac OS X (lion 526386553d13cc09c1ab03377bf86e0a253e529a)

Note we'll drop support for Ubuntu 12.10 from 0.4.0.

[ShikiOkasaka]

Done! https://github.com/esrille/escudo/tree/v0.4.0